My paper concerning the age of the Sahidic Euchologion manuscript was published in the latest issue of Vigiliae Christianae and can be read here. The article is dedicated to the memory of Dom Emmanuel Lanne, osb, who edited the Euchologion for Patrologia Orientalis. Father Lanne died on June 23, 2010 at the Chevetogne Abbey, less than half an hour after I arrived to visit him.